diffuse circulation

diffuse circulation
   , diffuse flow
   Circulation of ground water in karst aquifers (or other aquifers) under conditions in which all, or almost all, openings (primary and secondary) in the karstified rock intercommunicate and are full of water but have not been selectively enlarged in specific zones by dissolution, and so thus no concentration of ground water occurs in restricted conduits [9, 21]. The ground-water flow is generally slowmoving, may be laminar, and have a uniform discharge and slow response to storms. It is being replaced by the term, slow flow, because significant confusion regarding its usage especially when thought of as in terms of porous-media flow.
   Synonyms: (French.) circulation diffuse; (German.) Diffuse Grundwaßerbewegung; (Greek.) thiacheomenon ydhor; (Italian.) circolazione carsica diffusa; (Spanish.) circulación saturada difusa; (Turkish.) yayg2n dolaÕ2m; (Yugoslavian.) difuzno teenje.

A Lexicon of Cave and Karst Terminology with Special Reference to Environmental Karst Hydrology. . 2002.

См. также в других словарях:

  • CIRCULATION — L’eau est le constituant majeur des organismes vivants. Les réactions chimiques complexes du métabolisme se déroulent en phase aqueuse et nécessitent des échanges permanents de substances: absorption de composés nutritifs et élimination de… …   Encyclopédie Universelle

  • diffuse — I verb bespread, besprinkle, bestrew, break up, broadcast, cast forth, circulate, circumfuse, commingle, deal out, decentralize, diffundere, diffundi, disband, disintegrate, disperse, dispread, disseminate, dissipate, distribute, effuse, go in… …   Law dictionary

  • circulation — circulable /serr kyeuh leuh beuhl/, adj. /serr kyeuh lay sheuhn/, n. 1. an act or instance of circulating, moving in a circle or circuit, or flowing. 2. the continuous movement of blood through the heart and blood vessels, which is maintained… …   Universalium

  • localized circulation —    Circulation in karst aquifers in which the water moves in certain preferred zones and does not occupy all or most of the openings below this level [10].    Synonyms: (French.) circulation préfèrentielle; (German.) Örtlich begrenzte Karstwaßer… …   Lexicon of Cave and Karst Terminology

  • Thermohaline circulation — A summary of the path of the thermohaline circulation/ Great Ocean Conveyor. Blue paths represent deep water currents, while red paths represent surface currents The term thermohaline circulation (THC) refers to a part of the large scale ocean… …   Wikipedia

  • Hydrothermal circulation — in its most general sense is the circulation of hot water; hydros in the Greek meaning water and thermos meaning heat. Hydrothermal circulation occurs most often in the vicinity of sources of heat within the Earth s crust. This generally occurs… …   Wikipedia

  • Leptomeningeal collateral circulation — The term leptomeningeal refers to the two deep layers of the meninges the pia mater and the arachnoid mater. The leptomeningeal collateral circulation is a network of blood vessels supplying the brain that follows a diffuse course over the… …   Wikipedia

  • put into circulation — index circulate, diffuse, dispel, issue (publish), publish Burton s Legal Thesaurus. William C. Burton. 2006 …   Law dictionary

  • Libre circulation — ● Libre circulation fait de pouvoir être librement diffusé et, en particulier, de pouvoir passer librement d un pays à l autre …   Encyclopédie Universelle

  • Être en circulation — ● Être en circulation être diffusé, propagé, passer de main en main …   Encyclopédie Universelle

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